header {
  padding: 0 12px;
  height: 48px;
  line-height: 48px;
  border-bottom: 1px solid #eee;
  justify-content: space-between;
  position: relative;
  display: flex;
  & .logo {
    & img {
      width: 50px;
      height: 38px;
    }
    & span {
      font-size: 16px;
      font-weight: bold;
      padding-left: 12px;
    }
  }
  & nav {
    cursor: pointer;
    padding-right: 20px;
  }
  & .isout {
    background-color: #fff;
    box-shadow: 0 0 4px #ccc;
  }
}
